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# ============LICENSE_START==========================================
# org.onap.vvp/test-engine
# ===================================================================
# Copyright © 2017 AT&T Intellectual Property. All rights reserved.
# ===================================================================
#
# Unless otherwise specified, all software contained herein is licensed
# under the Apache License, Version 2.0 (the “License”);
# you may not use this software except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#
#
# Unless otherwise specified, all documentation contained herein is licensed
# under the Creative Commons License, Attribution 4.0 Intl. (the “License”);
# you may not use this documentation except in compliance with the License.
# You may obtain a copy of the License at
#
# https://creativecommons.org/licenses/by/4.0/
#
# Unless required by applicable law or agreed to in writing, documentation
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# ============LICENSE_END============================================
#
# ECOMP is a trademark and service mark of AT&T Intellectual Property.
import os
import random
import string
import subprocess
import unittest
from cryptography.hazmat.backends import \
default_backend as crypto_default_backend, default_backend
from cryptography.hazmat.primitives import \
serialization as crypto_serialization
from cryptography.hazmat.primitives.asymmetric import rsa
from django.conf import settings
from services.constants import Constants
from services.database.db_user import DBUser
from services.logging_service import LoggingServiceFactory
from utils.authentication import JWTAuthentication
logger = LoggingServiceFactory.get_logger()
class Helper:
tc = unittest.TestCase('__init__')
@staticmethod
def rand_string(type_of_value='randomString', numberOfDigits=0):
letters_and_numbers = string.ascii_letters + string.digits
if type_of_value == 'email':
myEmail = ''.join(
random.choice(letters_and_numbers) for _ in range(
4)) + "@" + ''.join(
random.choice(
string.ascii_uppercase) for _ in range(4)) + ".com"
return "ST" + myEmail
elif type_of_value == 'randomNumber':
randomNumber = ''.join("%s" % random.randint(2, 9)
for _ in range(0, (numberOfDigits + 1)))
return randomNumber
elif type_of_value == 'randomString':
randomString = "".join(random.sample(letters_and_numbers, 5))
return "ST" + randomString
else:
raise Exception("invalid rand type")
@staticmethod
def rand_invite_email():
inviteEmail = "automationqatt" + \
Helper.rand_string("randomString") + "@gmail.com"
return inviteEmail
@staticmethod
def generate_sshpub_key():
try:
logger.debug("About to generate SSH Public Key")
key = rsa.generate_private_key(
public_exponent=65537,
key_size=2048,
backend=default_backend()
)
key.private_bytes(
encoding=crypto_serialization.Encoding.PEM,
format=crypto_serialization.PrivateFormat.TraditionalOpenSSL,
encryption_algorithm=crypto_serialization.NoEncryption())
public_key = key.public_key().public_bytes(
crypto_serialization.Encoding.OpenSSH,
crypto_serialization.PublicFormat.OpenSSH
).decode("utf-8")
logger.debug("Generated SSH Public Key: " + public_key)
# If failed write to log the error and return 'None'.
except Exception as e:
logger.error(e)
logger.error("Failed to generate SSH Public Key.")
raise e
return public_key
@staticmethod
def check_admin_ssh_existence(path, admin_ssh):
if admin_ssh == open(path).read().rstrip('\n'):
logger.debug(
"Admin SSH already defined in DB and equal " +
"to the one stored on the local system.")
return True
return False
@staticmethod
def get_or_create_rsa_key_for_admin():
# Create pair of keys for the given user and return his public key.
try:
ssh_folder = Constants.Paths.SSH.PATH
public_file = ssh_folder + "id_rsa.pub"
privateFile = ssh_folder + "id_rsa"
admin_ssh_exist_and_equal = False
admin_ssh = None
if not os.path.exists(ssh_folder):
os.makedirs(ssh_folder)
elif os.path.exists(public_file):
admin_ssh = DBUser.retrieve_admin_ssh_from_db()
admin_ssh_exist_and_equal = Helper.check_admin_ssh_existence(
public_file, admin_ssh)
# TODO find pending gitlab bug causing old ssh key not be updated
# in gitlab cache
if False and admin_ssh_exist_and_equal:
return admin_ssh
else:
logger.debug("Private key file: " + privateFile +
"\nPublice key file: " + public_file)
key = rsa.generate_private_key(
backend=crypto_default_backend(),
public_exponent=65537,
key_size=2048
)
private_key = key.private_bytes(
crypto_serialization.Encoding.PEM,
crypto_serialization.PrivateFormat.PKCS8,
crypto_serialization.NoEncryption()).decode("utf-8")
public_key = key.public_key().public_bytes(
crypto_serialization.Encoding.OpenSSH,
crypto_serialization.PublicFormat.OpenSSH
).decode("utf-8")
with open(privateFile, 'w') as content_file:
os.chmod(privateFile, 0o600)
# Save private key to file.
content_file.write(private_key)
logger.debug(
"Private key created successfully for admin")
user_pub_key = public_key
with open(public_file, 'w') as content_file:
content_file.write(public_key) # Save public key to file.
logger.debug("Public key created successfully for admin")
cmd = 'ssh-keyscan ' + \
settings.GITLAB_URL[7:-1] + ' >> ' + \
ssh_folder + 'known_hosts'
# Create known_hosts file and add GitLab to it.
subprocess.Popen(cmd, shell=True, stderr=subprocess.PIPE)
logger.debug("Added GitLab to known_hosts")
return user_pub_key
except Exception as error:
logger.error(
"_-_-_-_-_- Unexpected error in " +
"get_or_create_rsa_key_for_admin: %s" % error)
raise Exception("Failed to create SSH keys for user admin", error)
@staticmethod
def internal_assert(x, y):
try:
Helper.tc.assertEqual(str(x), str(y))
except Exception as e:
raise Exception("AssertionError: \"" + str(x) +
"\" != \"" + str(y) + "\"", e)
@staticmethod
def internal_assert_boolean(x, y):
try:
Helper.tc.assertEqual(str(x), str(y))
return True
except Exception as e:
raise Exception("AssertionError: \"" + str(x) +
"\" != \"" + str(y) + "\"", e)
@staticmethod
def internal_assert_boolean_true_false(x, y):
return Helper.tc.assertEqual(str(x), str(y))
@staticmethod
def internal_not_equal(x, y):
try:
Helper.tc.assertNotEqual(x, y)
except Exception as e:
raise Exception("AssertionError: \"" + str(x) +
"\" != \"" + str(y) + "\"", e)
@staticmethod
def get_reset_passw_url(email):
jwtObj = JWTAuthentication()
token = jwtObj.createPersonalTokenWithExpiration(email)
resetPasswURL = Constants.Default.LoginURL.TEXT + "?t=" + token
return resetPasswURL
@staticmethod
def assertTrue(expr, msg=None):
"""Check that the expression is true."""
if not expr:
raise Exception("AssertionError: \"not expr")
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